<template>
  <div class="todo-footer" v-show="total">
    <label>
      <!--<input type="checkbox" :checkde='isAll' @click='checkAll'/>-->
      <input type="checkbox" v-model='isAll'/>
    </label>
    <span> <span>已完成{{doneTotal}}</span> / 全部{{total}} </span>
    <button class="btn btn-danger" @click="clearAll">清除已完成任务</button>
  </div>
</template>

<script>
    export default {
    name: "TodoFooter",
    props:['todolist'],
    computed:{
      total(){
        return this.todolist.length
      },
      doneTotal(){
        let i = 0
        this.todolist.forEach((todo) => {
          if(todo.done) i++
        });
        return i
      },
      isAll:{
        get(){
          return this.doneTotal === this.total && this.total >0
        },
        set(value){
          this.$emit('checkAllTodo',value)
        }
      }
    },
    methods: {
      // checkAll(e){
      //   this.checkAllTodo(e.target.checked)
      // }
      clearAll(){
        this.$emit('clearAllTodo')
      }
    },
  };
</script>

<style scoped>
  /*footer*/
  .todo-footer {
    height: 40px;
    line-height: 40px;
    padding-left: 6px;
    margin-top: 5px;
  }
  .todo-footer label {
    display: inline-block;
    margin-right: 20px;
    cursor: pointer;
  }
  .todo-footer label input {
    position: relative;
    top: -1px;
    vertical-align: middle;
    margin-right: 5px;
  }
  .todo-footer button {
    float: right;
    margin-top: 5px;
  }
</style>